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<?php fb_intercept( 'Foo::__invoke', function () { echo '__invoke called!'; } ); var_dump((new Foo)->bar());
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught Error: Call to undefined function fb_intercept() in /in/mva2k:2 Stack trace: #0 {main} thrown in /in/mva2k on line 2
Process exited with code 255.

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